
13
2
Optical Fibers:
Geometrical and Guiding Properties
This chapter describes the fundamentals of guiding lightwaves in planar and circular
o
ptical
w
aveguides.
A
b
rief
d
erivation
o
f
t
he
w
ave
e
quation
f
rom
t
he
Ma
xwell’s
e
quations
i
s
g
iven
f
or
s
ymmetric
p
lanar
w
aveguides
l
eading
t
o
t
he
p
henomenon
o
f
g
uiding
i
n
o
pti-
cal
bers, that is, circular optical waveguides.
Only
g
eometrical
p
arameters
o
f
o
ptical
bers
a
re
p
resented
h
ere.
T
he
a
ttenuation
a
nd
dispersion effects of modulated lightwave signals, that is, the operational parameters, are
d
escribed
i
n
C
hapter
3
.
H
owever,
a
b
rief
i
ntroduction
t
o
ber
n
onlinear
e
ffects
i
s
g
iven
h
ere so that the ...